An analysis of the state's fiscal system finds that Illinois’ state deficit will increase to more than $6 Billion over the next five years, without adding or expanding any programs. This deficit increase is the result of a tax system that does not generate enough revenue to continue funding the current level of public services into the future, adjusting solely for inflation and population growth. This fiscal mismatch is called a “structural deficit.” In addition to an unsustainable state revenue system, the study also found that increasing the number of high paying jobs in the state will no